Table 5: Transportation Services Index from Previous Years ,,,,,,,, Percent Change to 2006 (December to December),,,,,,,, Percent change to December 2006,Since December . . .,Duration in years,,,,,, -0.4,2005,1,,,,,, 0.2,2004,2,,,,,, 4.1,2003,3,,,,,, 7.5,2002,4,,,,,, 15.9,2001,5,,,,,, 11.7,2000,6,,,,,, 7.9,1999,7,,,,,, 12.7,1998,8,,,,,, 16.0,1997,9,,,,,, SOURCE: Bureau of Transportation Statistics,,,,,,,, NOTE: The percent changes to December 2006 are all preliminary,,,,,,,, ,,,,,,,, ,,,,,,,,